Vilanterol Impurity 22 CAS CATO-C4X-193522
| CAS No. | CATO-C4X-193522 |
| Molecular Formula | C24H33Cl2NO6 |
| Molecular Weight | 502.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
As a process- or degradation-related impurity, Vilanterol Impurity 22 (CAS CATO-C4X-193522, C24H33Cl2NO6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C24H33Cl2NO6, Vilanterol Impurity 22 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 502.43 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C24H33Cl2NO6 |
| Molecular Weight | 502.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Vilanterol Standards
- Vilanterol Impurity 92 (CAS CATO-C4X-193592)
- Vilanterol Impurity 83 (CAS CATO-C4X-193583)
- Vilanterol Impurity 12 (CAS CATO-C4X-193512)
- Vilanterol Impurity 88 (CAS 1582675-85-1)
- Vilanterol (CAS 503068-34-6)
- Vilanterol Racemate (CAS 957997-33-0)
- Vilanterol Impurity 73 (CAS CATO-C4X-193573)
- Vilanterol Impurity 74 (CAS CATO-C4X-193574)
Recommended Standards
- N-(3-(trifluoromethyl)phenyl)-2-(N-(3-(trifluoromethyl)phenyl)phenylsulfonamido)acetamide (CAS 337922-34-6)
- 3-(Bis(3,5-difluorophenyl)phosphino)-[1,1':3',1''-terphenyl]-2'-ol (CAS 185543-94-6)
- (E)-N'-(1-(2-(Benzyloxy)phenyl)-2,2,2-trifluoroethylidene)-2-(trifluoromethyl)benzenesulfonohydrazide (CAS 2738683-57-1)
- 2,6-Bis(Trifluoromethyl)-4-Pyrimidinamine (CAS 717-61-3)
- Vitamin K1 Impurity 38 (CAS CATO-C4X-220738)
- Dextromethorphan Impurity 30 (CAS 367520-36-3)
- Eltrombopag Impurity 80 (CAS CATO-C4X-119880)
- Gemigliptin impurity 1 (CAS CATO-C4X-33061)
- Methyl 2-(1,1-dioxidotetrahydrothiophen-3-yl)-2,2-difluoroacetate (CAS 1783700-24-2)
- 2-(1H-1,2,4-triazol-5-yl)acetaldehyde (CAS 2228462-10-8)
- N-(6-chloro-4-methylpyridin-3-yl)acetamide (CAS 6635-92-3)
- 5-(3,4-Dichlorophenyl)-4-hydroxythiophene-3-carbaldehyde (CAS 808122-88-5)
- 1-(Thieno[2,3-b]pyridin-2-yl)ethanone (CAS 53175-00-1)
- Semaglutide Main Chain P29 (CAS 1169630-82-3)
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